Free JNCIA Junos OS Fundamentals Questions and Answers

Question 1

What is the primary function of the Junos OS?

Accepted Answer

Serve as a modular and scalable network operating system

Answer

Junos OS is designed for high-performance routing, switching, and security in network devices.

Question 2

Which component is responsible for controlling and managing the Junos OS?

Accepted Answer

Routing Engine (RE)

Answer

The Routing Engine handles control plane functions, such as routing protocols and system management.

Question 3

How is the Junos OS configuration organized?

Accepted Answer

A hierarchical structure

Answer

Junos OS uses a hierarchical configuration structure that allows for intuitive navigation and management.

Question 4

What command is used to enter configuration mode in Junos OS?

Accepted Answer

configure

Answer

The configure command switches the user from operational mode to configuration mode.

Question 5

In Junos OS, what is the purpose of the commit command?

Accepted Answer

Apply the candidate configuration to the active configuration

Answer

The commit command applies the candidate configuration to the active system configuration.

JNCIA - Juniper Networks Certified Internet Associate Practice Test